<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<meta name="viewport" content="width=device-width, initial-scale=1.0,user-scalable=no">
		<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
		<style type="text/css">
			a{
				display: block;
				text-align: center;
				color: gray;
			}
		</style>
	</head>
	<body>
		<div class="container">
			<div class="jumbotron">
			  <h1>Hello, world!</h1>
			</div>
			<div class="row">
			  <div class="col-lg-3 col-lg-push-9 col-md-4 col-md-push-8 col-sm-6 col-sm-push-6">
			    <div class="thumbnail">
			      <img src="img/webpack.png" alt="...">
			      <div class="caption">
			        <h3 class="text-center">Bootstrap 编码规范</h3>
			        <a href="javascript:;" class="text-center">by @mdo</a>
			        <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
			      </div>
			    </div>
			  </div>
			  
			   <div class="col-lg-3 col-lg-push-3 col-md-4 col-md-pull-0  col-sm-6 col-sm-pull-6">
			    <div class="thumbnail">
			      <img src="img/react.png" alt="...">
			      <div class="caption">
			        <h3>Bootstrap 编码规范</h3>
			        <a href="javascript:;" class="text-center">by @mdo</a>
			        <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
			      </div>
			    </div>
			  </div>
			  
			   <div class="col-lg-3 col-lg-pull-3 col-md-4 col-md-pull-8 col-sm-6">
			    <div class="thumbnail">
			      <img src="img/yarn.png" alt="...">
			      <div class="caption">
			        <h3>Bootstrap 编码规范</h3>
			        <a href="javascript:;" class="text-center">by @mdo</a>
			        <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
			      </div>
			    </div>
			  </div>
			  
			   <div class="col-lg-3 col-lg-pull-9 col-md-4 col-sm-6">
			    <div class="thumbnail">
			      <img src="img/bootstrap.png" alt="...">
			      <div class="caption">
			        <h3>Bootstrap 编码规范</h3>
			        <a href="javascript:;" class="text-center">by @mdo</a>
			        <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
			      </div>
			    </div>
			  </div>
			</div>
		</div>
	</body>
	<script src="js/jquery.min.js"></script>
	<script src="js/bootstrap.min.js"></script>
</html>
